Mold.



No. 867,129.` PATENI'ED SEPT. 24, 1907. W. L. HART 6: F. J. DANIELS.

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'I PATEN'IED SEPT. 24, 1907. W. L. HART & F. J. DANIELS.

MOLD. APPLIUATIN FILED DEO. l. 1906.

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attozneg l UNITED STATES PATENT OFFIOE.`

WILLIAM L. HART AND FRANK J. DANIELS, OF OLNEY, ILLINOIS; SAID HARTASSIGNOR TO CHARLES O. DANIELS, OF OLNEY, ILLINOIS.

MOLD.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Applies-:w met December 1,1906. seramos/15.904.

is in turn removably arranged on a base plate withl which the coresemployed in the mold are detachably engaged.

The invention has for its objects to provide a comparatively simple,inexpensive device of this character wherein the mold walls may bereadily moved to or from casting position, one in which the mold may beconveniently removed from the completed block, and this without injuringthe latter, and one in which the cores will be rmly and securelyretained in position on the base or pallet during the formation of theblock and be quickly released at the completion of the castingoperation, the initial step in the action of releasing the cores servingto positively move the same out of the cast block.

With these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings, Figure 1 is a top plan view of a moldembodying the invention, showing the parts in casting position and acompleted block within the mold. Fig. 2 is a vertical section takencentrally and longitudinally through the mold on the line 2-2 ofA Fig.l. Fig. 3 is a vertical transverse section taken on the line 3--3 ofFig. 1, and showingin dotted lines the manner of removing the mold fromthe block. Fig. 4 is a detail perspective view of one of the pivotingmembers or links. Fig. 5 is a perspective view of the lock plate.

Referring to the drawings, it will be seen that the mold, which rests ona base plate or pallet 1, comprises a` front wall 2, end walls 3, and arear side wall 4, there being formed on the upper edges of the walloutturned portions or flanges 5 conjointly forming a iaring mouththrough the medium of which the materialv may be readily introduced intothe mold, while arranged on the base or pallet 1 is a lock member orstrip 6 made of metal and provided at points adjacent its ends withdepending internally threaded tubular thimbles 7 designed to seat andfit tightly within openings 8 formed through the base plate 1.

The mold is mounted in a frame 9 preferably composed of metal tubing andof open rectangular form, as shown, comprising longitudinal side bars orrails 10-11 and end bars or rails 12 terminally joined to the rails10-11 by means of coupling members or elbows 13 have ing at their innersides horizontal webs 14 perforated to receive vertical end posts 15secured in place in the frame bymeans of nuts 1G tapped on to theirupper ends and resting at their lower ends on the base 1.

The front wall 2 of the mold is ixedly attached to the front rails 10 bymeans of rivets or other attaching members 17, while the end walls 3 andrear wall 4 are movably supported in the frame through the medium ofconnecting arms or links 18 pivoted at their outer ends by means ofpintles 19 to ears 20 formed on clips 21 suitably fixed on the framemembers 11-12 and are pivoted at their inner ends by means of pintles 22to bracket plates 23, riveted or otherwise secured to the mold walls, itbeing noted that there are employed a plurality of connecting linkswhich are identical in form and are disposed at appropriately spacedintervals and further, that the movable walls will, when carried toinactive position, be moved upwardly and outwardly through the medium ofthe links 18 for a purpose which will hereinafter appear.

Arranged in the mold and `for forming transverse air openings throughthe block 24, is a pair of tubular metal cores 25 of graduallydiminishing taper from their upper to their lower ends and preferably ofrectangular form in cross section, as shown, there being xed in each ofthe cores and respectively adjacent its ends a pair of horizontaltransverse bracing pieces or straps 26, suitably perforated to receive acentral longitudinal 1'0- tary locking member or rod 27 having at itsupper end a hand-piece 28, and terminating at its lower end in anenlarged, externally threaded engaging porti on or head 29, adapted tobe screwed into one of the thimbles 7 and to bear at its upper endagainst the lower strap 26, while fixed on the. rod 27 and to bear onthe upper bracing strap 2G, is a collar 30 which, together with the head29, secures the rod against longitudinal movement relative to the core.Y

In practice, the frame 9 carrying the mold, is properly positioned onthe base-plate or pallet 1, and with the mold walls arranged in castingposition, as in Figs. 1 and 2, after which the cores 25 are fiXedlyarranged in the mold by entering the engaging portions 29 of the lockingrods into the thimbles 7, in which operation the end-pieces 28 aregrasped and the rods suitably rotated. After the mold and cores havebeen properly positioned the mold is filled with plastic material forforming the block 24, and after the material has set, the cores arereleased from the pallet 1 for removal by rotating the rods 27 todisengage the heads 29 from the lock-plate 6, it being noted in thisconnection that in the operation of releasing-*the cores and, owing tothe rods 27 being held against longitudinal Amovement relative to thecores, the latter will be positively moved upward a suficient distanceto wholly free them from the block,

after which they may be readily lifted out of the mold, and this Withoutinjuring the block. The cores having been removed, the mold walls 3 and4 are moved to iuactive position for releasing the block by swinging thearms 18 upward on their pivots 19, whereby an upward and outwardmovement is imparted to the walls, thus carrying them away from andwithout injury to the adjacent faces of the block. After the Walls 3 and4 have reached the limit of their outward movement, the frame 9 istilted bodily forward, as seen by dotted lines in Fig. 3, thus movingthe wall 2 away from the front face of the block, which is thus whollyfreed from the mold and remains standing on the pallet l for removal tothe drying shed. It is to be particularly observed that the mold wallsmay be conveniently arranged incasting or non-casting position and thatin the operation of releasing the completed block, the walls will bemoved diagonally away from the faces of the latter, whereby marring ofthe block is obviated.

Having` thus described the invention, what. I claim iszl l. In a deviceof the class described, a frame, a mold disposed therein comprisingside. and end walls, one of said walls being fixed to the trame and theothers movably arranged therein, a pallet on which the mold rests, andmeans connecting the movable walls to the frame for upward and outwardswinging movement to inactive position. the mold being adapted after themovable walls have been moved to-inactive position, to tip bodilyforward for discharging the block.

2. In a device of the class described, a frame, a mold arranged thereinand comprising side and end walls, 011e of said walls being xed to theframe and the others being movably sustained therein` connecting armspivotcd in the frame and to the movable walls for carrying the latter,and a pallet on which the mold res the movable wallsl beingadapted toswing upward and outward to inactive position and the mold arranged todip bodily t'orward in discharging the block.

In a device of the class described. the combination ot' a tlat moldbase, a tilt'able frame normally resting on the base, a mold comprisingsides, one of which is attaehed to the frame to tilt therewith and theothers movable inde pendcntly of the frame, and parallel linksconnectet'i with and disposed between each independently movable sideand adjacent portion of the trame,

4. ln a device of the class described. the combination ot' a tlat, lnoldbase, a tiltable frame normally resting on the top thereof, a meldnorlnally resting on the top o1' the base and having one side attachedto the frame to tilt there with and its remaining sides spaced from thetraine, and links connecting the spaced sides with the mold for independent movement and adapted when in horizontal posi tion te hold thesides in operative relation.

5. ln a devicel of the class described. a mold` a mold base providedwith a plurality of spaced and connected internally threaded keeper'openings. a plurality ot' hollow cores removably arranged in the mold.fixed brat-esl ex tended transversely of the cores and having bearingopenings, a rotary locking rod tor each core journaled in said openingsand provided with a threaded eng' ging portion designed for threadedengagement with the at aeent keeper opening to detachably secure theeore in place. and means on each rod for engagement with the braees totix the rod against longitudinal movement, relative to the eore.

ln testimony whereot', we atlix our signatures in presence ot twowitnesses.

Witnesses l Il. MoN'reonrucY. ll. M. lluNsilnv.

